Rotary pump.



Patented Dec. 13, 1910.

2 SHEETS-SHEET 1.

J. BAGULEY.

ROTARY PUMP.

AYILIOATION FILED 00T.24, 1908.

978,350. Patented Dec.13,1910.

2 SHEETS-SHEET 2.

fgaz,

wW/y, I ,//l/ I 6% M' r l (libanais JAMES BAGULEY, 0F EVANSTON, WYOMING.

ROTARY PUMP.

Specification of Letters Patent.

Patented Dee. 13, 1910.

Application filed October 24, 1908. Serial No. 459,376.

To all whom it may concern:

Be it known that I, JAMES BAGULEY, a citizen of the United States,residing at Evanston, in the county of Uinta and State of Wyoming, haveinvented a new and useful Rotary Pump, of which the following is aspecification.

It is the primary object of my invention to rovide a construction ofrotary pump which will operate to lift a maximum volume of water at eachrevolution and in which there will be a minimum amount of friction.

It is a further object of the invention to provide a pump including acylinder', a rotatable head journaled eccentrically within the cylinder,and a reciprocating piston carried by the head and transeeting the head,with its ends projecting beyond the periphery thereof. Heretofore, ithas been customary, in similar constructions, to slot the shaft uponwhich the head is fixed, and to mount the piston through the shaft butowing to the peculiar' form of piston employed by me, this slotting ofthe shaft is avoided and as the consequence, a much more durable pump isproduced.

In the accompanying drawings, Figure 1 is a side elevation of thel pumpembodying my invention, the near cylinder head being removed, and partsbeing shown in section, and Fig. 2 is a Vertical sectional View throughthe pump on the line 2*2 of Fig. 1.

As shown in the drawings, the pump is comprised in part of a cylinder 5having a head 6 secured to the ends thereof and provided with suitablebearings 7 through which bearings is ournaled a shaft 8 which, at oneend, outwardly of the cylinder, has fixed upon it a belt pulley 9 and acrank handle 10 either of which may be employed in rotating the shaft tooperate the pumping mechanism within the cylinder as will be presentlyfully explained.

Fixed upon the shaft 8 and rotating between the cylinder heads 6 is apiston carrying head including a rim 11 of a width equal to the distancebetween the two heads 6, and spokes 12 of which there are a pair. Therim 11 is divided at two points which are in a plane to one side of theaxis of the heads, as'indicated by the numeral 13, and

\ one of the spokes 12 supports one section of the rim and the otherspoke the other section, the opposing edges of the ends of the sectionsof the rims, forming in edeet a slot through which the piston of thepump is worked.

As clearly shown in Fig. 1 of the drawings, the head rotateseceentrieally within the cylinder and against the inner surface of thecylinder wall 5 at one point and spaced therefrom at all other points.

Leading into the cylinderI through the under side thereof is a waterinlet pipe 14 and leading from the cylinder at a, point approximately1300 from the inlet pipe 13 is an outlet pipe 15.

The piston of the pump is comprised, in part, of a plate 16 havingitsintermediate portion off-set as at 17, the intermediate portion of theplate, or in other words the oli` set portion 17, being provided with aslot 18 through which the spoke for supporting the minor section of thehead 11 is received it being understood that this slot 18 is of sufcientlength to permit proper reciprocation of the piston. The end portion ofthe plate 16 extends between the opposing end edges of the section ofthe head 11 and works therebetween when the piston reciprocates. Asclearly shown in the drawings, said end portions of the plate 16 extendin a line intersecting the axis of the cylinder, the plate 16 being of awidth equal to the distance between the two heads 6 of the cylinder. Ateach end, the plate 16 is formed with a groove or seat 19 in which isslidably received a metal packing strip 20, the said strip being heldlirmly against the inner surface of the wall 5 of the cylinder, by meansof a spring having an intermediate portion 21 bearing against the inneredge of the said strip and at a point midway between shoulders 22 formedupon the said edge of the strip, and with end bowed portions 2.3 whichbear against the bottom of the groove. The extremities of the springrest against the shoulders 22.

From the foregoing description of my invention, it will be understoodthat as the shaft 8 is rotated, the head 11 will also rotate and as theends of the piston 16 bear against the inner surface of the wall 5 ofthe cylinder, the piston will be reciprocated in a line intersecting theaxis of thel cylinder. As each end of the piston passes the inlet port14, the suction produced will draw water into the cylinder through thisport and after the other end of the piston passes the said port, thewater gathers between the two ends of the piston, the wall 5 of thecylinder and the opposing portion of the rim of the head 11, and isforced out through the discharge pipe.

From the foregoing and an inspection of Fig'. l of the drawings it willbe observedV that as the piston rotates', the points of contact of itsends with the cylinder wall approach each other so that as the saidlpiston` assumes the dotted line position or approximately this position,and that end thereof to the left in Fig. l swings up, the endwisecompression-of the piston between the cylinder walls increases with theincrease in volume of water being lifted by the said end of the pistonso that there is little or no possibility of the water receding due t0poor contact of the piston ends with the cylinder wall. The performanceof this function results from the mounting of the .piston to one side ofthe shaft 8. Y

Y What is claimed is A In a rotary pump, a cylinder, a head mountedeccentrically within the cylinder for rotation, and a piston slidablymounted in the head and transeoting the same, said piston projecting atboth ends beyondthe my own, I have hereto affixed my signature 35 in thepresence of two witnesses.

J AMES BAGULEY. Witnesses R. S. SPENCE, G. A. SOLOMON.

